ET NETBIOS PolarisOffice Insecure Library Loading - SMB Unicode

Query · suricata

flow:from_server;
content:"SMB"; offset:4; depth:5;
byte_test:1,&,0x80,7,relative;
content:"p|00|u|00|i|00|f|00|r|00|a|00|m|00|e|00|w|00|o|00|r|00|k|00|p|00|r|00|o|00|r|00|e|00|s|00|e|00|n|00|u|00 2E 00|d|00|l|00|l|00|"; nocase; distance:0;
Raw source ET NETBIOS PolarisOffice Insecure Library Loading - SMB Unicode · Suricata
Esc
Published by Emerging Threats Open ↗, licensed under BSD 3-Clause ↗. Line breaks added for readability; the rule is otherwise unchanged. 
alert tcp $HOME_NET [445,139] -> any any (
    msg:"ET NETBIOS PolarisOffice Insecure Library Loading - SMB Unicode";
    flow:from_server;
    content:"SMB"; offset:4; depth:5;
    byte_test:1,&,0x80,7,relative;
    content:"p|00|u|00|i|00|f|00|r|00|a|00|m|00|e|00|w|00|o|00|r|00|k|00|p|00|r|00|o|00|r|00|e|00|s|00|e|00|n|00|u|00 2E 00|d|00|l|00|l|00|"; nocase; distance:0;
    reference:cve,2018-12589;
    reference:url,exploit-db.com/exploits/44985;
    classtype:attempted-user;
    sid:2025791; rev:2;
    metadata:attack_target Client_Endpoint, created_at 2018_07_06, cve CVE_2018_12589, deployment Perimeter, signature_severity Informational, updated_at 2021_09_09;
)

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